With the POS shotguns having such a bad reputation I imagine one could be picked up at a very low price. How hard could it be to simply take the action apart and case harden the parts and then put it back together. I've made and repaired parts for different things, not just guns, where I first had to anneal the part before I could repair it and case hardening's not that hard to do.
Steve
Yes sir, and its just that simple. But Id suggest checking each part to verify it needs attention. No point in fixing something that isnt broken.